Set in Michael James Flaherty's public house in County Mayo (on the west coast of Ireland) during the early 1900s, it tells the story of Christy Mahon, a young man running away from his farm, claiming he killed his father. The locals are more interested in vicariously enjoying his story than in condemning the immorality of his murderous deed. He captures the romantic attention of the bar-maid Pegeen Mike, the daughter of Flaherty.